1991 johnson gt 150 v6

[webb42]

i am running a johnson gt 150. when i hook the muffs up to it and let it run its fine and when i get on it a lil bit a constant tone buzzer comes on. I can turn it off and fire it right back up and it will not make a sound untill i rev it baack up but it is peeing fine and getting plenty of oil. I can take the cowl off and touch the heads and they are not hot just a lil warm but you can leave your hand on them and not get hurt. can some one please give me suggestions haha

 

[emdsapmgr]

Re: 1991 johnson gt 150 v6

OMC made two types of 150's in 1991. The crossflow and the new 60 degree looper. Pls post your model number. Both engines should have a vacuum switch which monitors the fuel vacuum. A high reading can also prompt a constant warning horn-meaning the engine may be running lean. Best to determine just what is causing the warning before you run the engine.

 

[webb42]

Re: 1991 johnson gt 150 v6

OMC made two types of 150's in 1991. The crossflow and the new 60 degree looper. Pls post your model number. Both engines should have a vacuum switch which monitors the fuel vacuum. A high reading can also prompt a constant warning horn-meaning the engine may be running lean. Best to determine just what is causing the warning before you run the engine.

I dont know the model number right off i dont have the boat at my house sorry. Do you think it coould be from low fuel cause its very low on fuel.

 

[webb42]

Re: 1991 johnson gt 150 v6

I have had a few people tell me to take the vro pump off the motor cause its oiling fine. Does that sound right

 

[emdsapmgr]

Re: 1991 johnson gt 150 v6

I wouldn't take it off just because someone told you to. You can validate/test whether it is functioning correctly. If it is, it's a valuable asset to you as an owner. More likely you will get a constant horn if it is low on oil or the fuel system has abnormally high fuel line vacuum.

 

[webb42]

Re: 1991 johnson gt 150 v6

thanks for the feed back keep it coming im a open book haha im pretty new to this i am having it checked out buy a mechanic and he has not told me anything yet but the motor flooded with me and im pretty sure it fouled a plug you think it not burning all the fuel and oil could do it